measles vaccine + mumps vaccine + rubella vaccine · Medicine question

What live attenuated virus strains does Priorix contain?

Name: What live attenuated virus strains does Priorix contain?
Published: 2026-11-08T01:56:40.866Z

iatroX medicinesPublished 8 November 2026

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Answer

Priorix contains live attenuated measles virus (Schwarz strain), mumps virus (RIT 4385 strain, derived from Jeryl Lynn strain) and rubella virus (Wistar RA 27/3 strain).

Sources for this answer

Priorix powder and solvent for solution for injection in a pre-filled syringeGlaxoSmithKline UK · emc · SmPC §2 Qualitative and quantitative composition · Version 32Document updated 2 January 2026

Sources checked 8 November 2026

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